0040892012187

Murray

Model MP120U

Internet #202315521

Store SKU #701793

Store SO SKU #516939

20 Amp Single-Pole Type MP-Circuit Breaker

$4.56 /each
  • Provides a manual means of energizing and de-energizing a circuit
  • Easy plug in connections in Murray load centers
  • Accepts #14-#16 AW Cu or #14-#16 AWG Al Wire

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Product Overview

Murray offers a wide array of thermal-magnetic circuit breakers that are the key element for overload and short-circuit protection of your home's electrical system. To provide additional protection Murray offers circuit breakers to protect against severe electrical shock or electrocution, mitigate the risk of electrical fires and protect against damaging surges and voltage spikes. Circuit breakers are intended for switching and protection of your home's wiring from high temperatures caused by excess current higher than the rating of the wire. While thermal-magnetic circuit breakers are the key element for overload and short-circuit protection of your electrical system, there are potentially dangerous conditions that do not involve over current.

  • Single pole, 20 Amp 120V type MP circuit breaker
  • 10,000 AIC interrupting rating
  • Murray type MP circuit breakers provide easy plug-in connections in Murray enclosures and the time saving insta-wire feature
  • Compatible with Murray rock solid load centers
  • Use for overload and short-circuit protection of your electrical system
  • Thermal-magnetic
  • Learn More About Circuit Breakers Here in our Buying Guide.

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Customer Questions & Answers

5 Questions6 Answers

Customer Questions & Answers

20 Amp Single-Pole Type MP-Circuit Breaker
20 Amp Single-Pole Type MP-Circuit Breaker

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This question is from 20 Amp Single-Pole Type MP-Circuit Breaker
 
2 answers

Size Spec for breaker

This question is from 20 Amp Single-Pole Type MP-Circuit Breaker
Asked by
Walla Walla, Washington
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January 14, 2016
Spec sheet on your website shows a product width of 3.5 inches. Please confirm. This appears very large for this breaker. It's more likely that it's closer to 1" in width as seen from the front of power panel with breaker installed.

Thanks
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Answers (2)

Asked by
Brooklyn
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Home Improvement Profile: Professional
March 11, 2016
Answer: 
I think you are looking at a 2 pole 20A, which would be about the size you mention. 1 pole Murrays are usually about 1" wide. Also tandem breakers (thin) = 2 breakers in the space of 1 regular breaker to add circuits where panel box space is limited.
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January 15, 2016
Answer: 
Hi Seb,
This circuit breaker is 1" in width. The dimensions will be updated to reflect that.
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This question is from 20 Amp Single-Pole Type MP-Circuit Breaker
 
1 answer

Is this type mp-t breaker a replacement for my crouse hinds lc240pc panel?

This question is from 20 Amp Single-Pole Type MP-Circuit Breaker
Asked by
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August 8, 2016
My breaker says to put MP-A, MP-C, MP-H but it doesn't mention MP-T. Is this the correct breaker to use?
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Answer (1)

August 11, 2016
Answer: 
Hi ehuntsch,
The Murray MP2020U are considered "Circuit Limiting" meaning that these tandem breakers will only fit into panels that are designed to accept tandem circuit breakers (I.E. a 12 space 24 circuit Load Center). There should be notched tabs at the bottom of the bus that this tandem breaker will fit on in your old Crouse Hinds panel in which case this would be a replacement breaker for your Read More
Hi ehuntsch,
The Murray MP2020U are considered "Circuit Limiting" meaning that these tandem breakers will only fit into panels that are designed to accept tandem circuit breakers (I.E. a 12 space 24 circuit Load Center). There should be notched tabs at the bottom of the bus that this tandem breaker will fit on in your old Crouse Hinds panel in which case this would be a replacement breaker for your panel. Read Less
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This question is from 20 Amp Single-Pole Type MP-Circuit Breaker
 
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I have an old cuise hinds panel box. Are the murray breakers compatible with cruise hinds panels?

This question is from 20 Amp Single-Pole Type MP-Circuit Breaker
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February 28, 2016
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Answer (1)

March 1, 2016
Answer: 
Hi Ernesto,
Yes, Murray and Siemens circuit breakers are replacements for old Crouse Hinds panels.
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This question is from 20 Amp Single-Pole Type MP-Circuit Breaker
 
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Old panel compatibility

This question is from 20 Amp Single-Pole Type MP-Circuit Breaker
Asked by
Hillsborough,nj
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November 27, 2015
I have an old Arrow Hart Murray panel in need of a new 20 amp breaker. Is this item compatible? The bad one I removed is actually a HOM120, which appears to only be good for a Homeline panel!
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Answer (1)

November 30, 2015
Answer: 
Hi tedward,
Yes, the correct replacement for your Arrow Hart circuit breaker is an MP120U. Do not put a Homeline breaker in the panel as it is not UL Listed to go into the panel.
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  • 2016-09-08 T13:26:41.195-05:00
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Customer Reviews

Rated 4.5 out of 5 by 2 reviewers.
Rated 4.0 out of 5.0 by Fits like a glove. Slipped it into by Crouse Hinds breaker box / Load Center and it is working fine. March 12, 2015
Rated 5.0 out of 5.0 by worked It's a breaker. It worked as it should. Delivery was quick. July 22, 2014
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